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Need some help here, stereo gurus. I just got a new head unit that I'm going to drop in my T-5R in the next few days. <p>This one: <A HREF="http://alpine-usa.com/US-en/products/product.php?model=iXA-W404&view=Specs" TARGET="_blank">http://alpine-usa.com/US-en/pr...Specs</A> <p>Anyway, my car came with the premium sound, which included a stock amp (I think under the seat?) which plugged into the rear of the head unit with a big, round, six-pin connector. My Alpine head unit obviously has nothing of the sort. Just pre-amp outputs that are just red and white RCA cables, plus the usual wiring. So, is there any connector or any re-wiring I can do to preserve that stock amp? And I guess the more important question is whether it is worth it at all, as the new head unit puts out a decent 50Wx4. <p>Second question: The new head unit plays iPod video and has an optional navigation component that I may buy later. Because of this, it has wires that are to be connected to the foot and parking brakes to sense when the system is allowed to let me play things. To make it think I'm always stopped, would I attach those wires to something that always has power when the car is on? I'm guessing that's the case since the wires would sense when the brake lights are activated or when the parking brake light goes on in the gauge cluster.
 

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Re: Preserve Stock 850 T-5R Amp with new Head Unit? ([email protected])

I think there is someone selling adapter cables on ebay that should do what you want. Also, IIRC, many of the aftermarket car sound co's have something for the P1's; have you checked Crutchfield?<p>BEJ also knows a lot about P1's and should respond eventually. He's awol-swedespeed somewhere at the moment.
 

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Re: Preserve Stock 850 T-5R Amp with new Head Unit? (MrTippy)

Nice! Found and purchased on Ebay.<p>MrTippy, you might know the answer to this as well. The Volvo head unit had six speaker outputs--two for the dash, two for the front doors, and two for the rear speakers. My new one has just four--two fronts and two rears. Should I just connect both the front door speakers and the dash ones to the front wires on the new HU?
 

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Re: Preserve Stock 850 T-5R Amp with new Head Unit? ([email protected])

I hope this isn't after the fact, but make sure that the cable you bought is for a p1 car, not a p2.<p>Again, there are plenty of places selling adapters (probably only made by a handful or less companies) that will match an aftermarket HU with the oem wiring.<p>First, I suggest try using the new HU as a standalone, see how you like the sound and then decide if you need an aux amp. If you then decide you do, consider an aftermarket amp; I don't think the Volvo aux amps are anything to write home about (except for the c70 premium sound pkg) and, in your case, might not offer much over the internal amp in your new HU--which is actually rated about the same, don't get fooled by those max ratings.<p>Speaker wiring: easy answer call alpine and ask them. <p>If your oe speakers are 8 ohms you can just wire the dash and fronts in parallel and you're good to go. If they are 4 ohms, you will likely need a matching transformer in there to avoid overdriving the amp.<p>Last, look up posts and website by Rothe, he is the master of all things sound for these model years.<p><A HREF="http://forums.swedespeed.com/zerothread?id=68644" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=68644</A><br>
 
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