[sheps]

Thanks for the offer, I'd really like that.

So, your next stage is to add a further dedicated sub in the boot? Will you be re-using the equipment from your previous install, or shopping for something new?

How will you be getting a signal/remote switch to your sub-dedicated amplifier? I'm guessing the Blaupunkt has pre-outs out for daisy chaining an additional amplifier?

I have a JL sub that I'd love to use in the BMW - its very reassuring that there is an upgrade path without masses of work...it just takes chaps-in-the-know like yourself to share the wealth of knowledge!