Earth point near the Stereo

Sayek · 02-07-2018, 05:49 AM

Hello all.

Recently fitted a aftermarket radio that requires thicker power cable connected direct to the battery. This radio demands thicker cable with 15Amp capacity.
Need to also upgrade the earth wire.

Anyone abler to help me locate a earth point no too far from the stereo please

https://www.pioneer-car.eu/eur/products/mvh-280fd

ctuna · 02-08-2018, 04:14 AM

http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja

Page 13 of the above document. (those are the official ones)
Anyplace on the chassis that is bare metal and you use a meter
to measure 0 resistance to.

Sayek · 02-10-2018, 06:42 AM

Quote:

Originally Posted by ctuna

http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja

Page 13 of the above document. (those are the official ones)
Anyplace on the chassis that is bare metal and you use a meter
to measure 0 resistance to.

Appreciate that Ctuna.

Will be a night to locate that point with limited access.

ctuna · 02-10-2018, 07:02 AM

Sayek · 02-10-2018, 12:28 PM

Appreciate your reply

Standard aftermarket radios work fine with the factory power wire.

But this radio is little different.
Pioneer and Sony released 2 radios with Class D 4x100w power instead of the usual 4x50w.
They deliver about 45w RMS per channel and pulls 15amp but the factory wires are rated at 10amp.

The instruction manual recommends upgrade wires to min 14AWG.
Otherwise as you increase the volume the music cuts out.

This videos shows the music cut out.

This videos show owner upgraded the power wire and no issues.

Sayek · 02-10-2018, 12:32 PM

Page 13 on the attached manual states upgrade wires to 14AWG

ctuna · 02-10-2018, 05:17 PM

Makes sense the most I have seen Head units produce it
45 watts and that may have been peak.

02-07-2018, 05:49 AM	#1
Sayek First Lieutenant 49 Rep 394 Posts Drives: E92 320i LCI Join Date: May 2016 Location: London iTrader: (0)	Earth point near the Stereo Hello all. Recently fitted a aftermarket radio that requires thicker power cable connected direct to the battery. This radio demands thicker cable with 15Amp capacity. Need to also upgrade the earth wire. Anyone abler to help me locate a earth point no too far from the stereo please https://www.pioneer-car.eu/eur/products/mvh-280fd
	Appreciate 0 Tweet Quote

02-08-2018, 04:14 AM	#2
ctuna Lieutenant General 1911 Rep 13,102 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja Page 13 of the above document. (those are the official ones) Anyplace on the chassis that is bare metal and you use a meter to measure 0 resistance to.
	Appreciate 0 Quote

02-10-2018, 07:02 AM	#4
ctuna Lieutenant General 1911 Rep 13,102 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	I don't recall anybody having trouble with grounds or power using the Power and Ground out of the factory Harness with a Metra or Connects 2 Harness. head unit http://www.e90post.com/forums/showth...ight=head+unit http://www.e90post.com/forums/showthread.php?t=1457320 http://www.e90post.com/forums/showthread.php?t=1036190 http://www.e90post.com/forums/showth...hlight=dynavin http://www.janus-design.net/english/ http://www.e90post.com/forums/showthread.php?t=355089 http://www.e90post.com/forums/showth...ight=head+unit http://www.e90post.com/forums/showth...hlight=dynavin http://www.e90post.com/forums/showth...hlight=dynavin http://www.e90post.com/forums/showth...light=retrofit http://www.e90post.com/forums/showthread.php?t=993447 http://www.e90post.com/forums/showthread.php?t=1016187 https://www.bmwgm5.com/Logic7_E90_91_92_93.htm http://www.e90post.com/forums/showth...hlight=dynavin You could establish chassis ground with an ohmeter. Last edited by ctuna; 02-10-2018 at 12:15 PM..
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02-10-2018, 12:32 PM	#6
Sayek First Lieutenant 49 Rep 394 Posts Drives: E92 320i LCI Join Date: May 2016 Location: London iTrader: (0)	Page 13 on the attached manual states upgrade wires to 14AWG
	Appreciate 0 Quote

02-10-2018, 05:17 PM	#7
ctuna Lieutenant General 1911 Rep 13,102 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	Makes sense the most I have seen Head units produce it 45 watts and that may have been peak.
	Appreciate 0 Quote