![]() ish) then the pins are as my reference sheet. as if you look up on the web the pinouts for mini-ISO connectors (the Alpine stereos seem to conform. I'm not 100% sure what is correct when it comes to the CD changer outputs. diagram somewhere with these designations shown ?Ĭlick to expand.To be honest. but only if they had actually included the signal/power designations on their (hopeless) diagram I posted up: Is there another (better) RAVE cct. Not so sure about those red/white clues you mentioned though (as it depends if LR or Alpine made the looms !!?). ![]() Purple & Green sound plausible for the power supplies, but it looks like O/W & R/S are paired up (ie. individual shields, but commoned) plus the ' extra' orange one (at the changer) for the whole bundle of wires, and originating from the (separate) changer earth supply ? I suspect that Marty's chart is nearest to the facts and that there are just some common (shielding) earths involved (ie. ![]() The important thing is he checks again first before splicing in an audio feed, of course, hence my alert. Quality aftermarket speakers would be the finishing touch, but watch for ones that fit Volvo doors - many don't.-In which case Larry both Chris and Marty have thus assumed incorrect designations/pins/etc.?.in particular from the looks of it Chris has no Data in/out/eth connections (at all) as I indicated above. Those amps are frequently on eBay at good prices. If you are retaining the Volvo head unit you can solder up an adapter for an aftermarket amp, but I would think your best path to better sound is to install more powerful Volvo amp(s) as suggested below, which should hook up with much less custom wiring hassle. And it can be made to get very loud.even generates the heavy bass that kids seem to think is the main feature of "music". Even at moderate volume there is a notable improvement - sound is more "full" and seems less strained. The twin RCA cable contains a separate wire to turn the amp on.this is also spliced into the DIN adapter. Long RCA line-level cables from the head unit to my adapter harness and its female RCA's, then the DIN plug into the amp. The Volvo amp was something like $15 at the PnP junkyard and I pulled it with its mounting bracket to hang it in the trunk under the rear package shelf. I got the DIN plug from Digi-Key (very cheap, I bought a package of 10) and the goal was to connect the Blaupunkt head unit in my daughter's 940 to a 2x40W Volvo amp salvaged from a late 80's 760, to drive the Infinity 6x9's in the rear deck. Maybe somebody with greater knowledge could point out a better spot in the stereo to tap into?Įven with my beginner's soldering skills I was able to cobble up a workable DIN-to-RCA adapter. I also disabled power to the motor so I wouldn't have to listen to broken gears turning. The best part is that when you want to listen to the "Aux In", you simply push in a tape - that triggers the radio to turn off and the tapedeck stage of the stereo to activate, so you still get all the tactile pleasure of handling a cassette. A little EQing is necessary to get perfect sound (bass down, treble up), but this thing sounds great, even loud enough to cover up that rattling heat shield! Since the tape preamp is expecting a very weak signal I put an attenuator (just a bunch of resistors - a transformer would have been nicer) right where the cd player/ipod plugs in. There is a mini wiring harness between the two, so I just unplugged it, cut it and solder a shielded cable to it. The easiest thing was to put my line in in between the tape head and the and tape deck preamplifier. I didn't manage to find this exact spot but am by no means an expert. Ideally, I wanted to tap into the circuit in between the tape deck and the amplifier. ![]() I couldn't handle having an ugly aftermarket radio, so decided to put in a "line in" for an ipod/cd player/portable record player/etc. I decided to take it apart to see if if I could fix it, only to find some pretty horrendously broken plastic gears and bits. The tape deck on my Volvo 240 was dead when I bought it. ![]()
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