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BMW 3-Series (E90 E92) Forum
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Retro fit amp?
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| 04-13-2019, 11:38 AM | #1 |
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Retro fit amp?
So I just bought a 2010 335i e92 and wanted to put trunk subs in and use a technic PNP harness and I cant seem to find my amp in this car. It's not under the plastic in the drivers side of the trunk. It's just empty under there. I called to dealership and asked where it was at and they told me it has retrofit amplifier but no part number or location. So yet again back to square 1. Could it be under the carpet in the side of the trunk. Or beside passenger in the back behind driver seat? I do believe this car has premium audio. It has nav package as well.
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| 04-13-2019, 01:42 PM | #3 |
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When I run the vin on bimmercat.com it comes up with hifi professional / Harman kardon. https://bimmercat.com/bmw/EN/search/...xi/USA/65_1525
Last edited by Jzimm; 04-13-2019 at 02:18 PM.. |
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| 04-13-2019, 03:43 PM | #4 |
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What's the option number ?
From the VIN checker? Can you print out what the vin checker returned in he 6xx range? If true the amp should be under the covering trunk covering behind the the rear driver side wheel well . You would have no sound at all without it being there. See document 3 in bmw stereo types for pictures of the location. Other indications of Top Hi Fi or logic 7 are a center speaker in the dash and EQ controls in the Radio or I drive. Both Hi Fi and Logic 7 have tweeter in the Front door sills Base system has no tweeters. See page 12 http://www.e90post.com/forums/attach...2&d=1260829447 This is the location for the amp no matter if its hi fi or top hi fi. If its not there and you have sound you don't have either. http://www.e90post.com/forums/attach...2&d=1266451970 Last edited by ctuna; 04-13-2019 at 04:11 PM.. |
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| 04-13-2019, 04:04 PM | #5 |
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65122151906 retrofit kit, CD changer is all it says I guess I'll have to pull the whole carpet cover off possibly tonight and see if its behind it rather than under it
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| 04-13-2019, 04:23 PM | #6 |
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Logic 7 amp is in the same location If there is no amp you would not have sound if you have either 676 or 677 , 688 you are making this harder than it has to be. If you don't see it under the plastic cover its not there . Note hi fi amps are black till 09 and sillver after. The Logic 7 amp is larger rectangular silver brick in all years. Last edited by ctuna; 04-13-2019 at 05:06 PM.. |
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| 04-13-2019, 04:34 PM | #7 |
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My plastic piece that they are removing isnt a shallow one like the one In all of these videos... I've watched numerous ones and they all say to remove that thin plastic plate. And mine is around a 4" deep tub instead. And since it's not as they show under that plate I figured I would ask if anyone would have a better idea since I haven't torn the trunk apart to find it
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| 04-13-2019, 08:00 PM | #9 |
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Yep no amp.(2010 ro 2011.5 ) in the US and everywhere else
in the World for all years. If you just would have run that Vin checker I supplied and not found 676 677 or 688 Did your vin checker even print out the options. in the list you wouldn't have had to even look at any of those things. If you read the links I gave you it offers plenty of examples of how to turn a base system into something good or awesome. http://www.e90post.com/forums/attach...5&d=1493273253 The above is the basic upgrade for the base system you can use a lot of other stuff to . I would suggest a Helix 86 DSP/amp or one of there BMW7's and a set of the Helix/Match BMW speaker sets. Last edited by ctuna; 04-13-2019 at 08:07 PM.. |
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| 04-21-2019, 06:38 PM | #11 | |
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Quote:
What I essentialy want to do is to: -recode my business radio to HiFi option to output LL signals, since I don't have wiring to the trunk I have to install it anyway and I find installing JL CleanSweep processor a bad idea and unnecessary in my case (it's like trying to fix effect rather than it's cause) -steal audio signal from underseat speaker wiring: yeah I know I need to steal both R and L channel so essentially I need to drag a wire from left and right door/underseat speaker to the trunk so I can have left and right input channels into amplifier. -install amp in the trunk and power it from battery, plug inputs stolen from underseat/door speaker cables -change underseat and door speakers to some good quality ones -now unfortunately I have to drag 2 power cables back: one to the underseat speaker from lowband amp output and also one from mid-highband amp output going to the doors. At this point I should split signal further through crossover (passive filter) to divide signal into mid and highband for door speaker and tweeter (I saw that Alpine retrofit uses "diplexer" - I assume that it's just a crossover and they aren't doing anything fancy either). But I think I'll try first to just pass the same mid-highband signal to both door speaker and tweeter to hear if it's worth additional job -install tweeters -optionally drive rear speakers from amp too as they probably won't be hearable at all from low level audio signal. I would need to use mid-to-high band speakers here because it's just one speaker without tweeter. All of this is doable only if it is possible to recode my business cd radio in 2008 E90 radio to HiFi mode, anyone knows? Also do you see any downsides in my plan? I think that overall it's good idea to do it this way, I could just buy alpine retrofit kit but it's expensive and quality is probably not that good anyway and besides PnP wiring it doesn't give me any advantage. Thanks for help! |
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| 04-21-2019, 07:32 PM | #12 |
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Diplexer basically a cheap crossover consisting of a capacitor.
cleansweep is obsolete now basically anything that will flatten the signal will do the job if you don't or can't recode. The audio gide tells you exactly what you need to do . You can use different equipment to accomplish the same thing. I would recommend that you get the Technic Harness unless you buy a package from Bimmertech or from someone that supply's it. I believe Bimmertech supply's a re-code with there kit. Rear speakers are a waste of money. Last edited by ctuna; 04-21-2019 at 07:39 PM.. |
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