what size wires?

4 gauge. It might be a little bigger than what you need 8 gauge would actual be just fine. But it leaves room so if you want to upgrade in the future you don't have to rerun wires. For the smaller 2 chnnel amp I would just go with 8 gauge for that. I currently run 0/4 setup.

what about connecting the remote and RCA wires? I havent taken out the head unit yet , so I dont know if there are 4 outlets for two RCA sets. If anyone knows let me know please.
Adam

Okay stock HU has no preouts for the RCA's you have to get a high/low converter and attach them to your speakers or get a special wiring harness for your hu. I did the high low converter and it works great.

Is one way better than the other in a two amp setup?
If I go with the Hi/Low will I need to get a splitter or something?
Or if I go with the harness can I hook up two amps to it?
thanks
Adam

No normally when buying a HU you would need one with 4 preouts. The Hi/Low is just as good. All it does is connect to your speaker wires. If you have never done it get it installed by a pro. The wiring harness only allows for 1 amp output that I know of.

Michael

4 AWG pwer to a distribution block. 8 AWG from dist block to amps. 16 or 18 AWG turn on lead. 16 AWG speaker wire to the four corners. 12 AWG speaker wire to the sub. Get some decent RCA's. Twisted pair are best. Don't buy the cheapies and don't have to be the mega-buck one's either. You should expect to spend about $20-30 per pair. You can also make your own using some ethernet cable. Check out my post here:

http://www.yoursciontc.com/forums/index.ph...=ethernet&st=15

I would use two hi to low adapters, but that's just me. Yes you could make the ethernet RCA's one big Y cable as well if you just use the one hi to low. Peripheral Interface Electronics (PIE) makes a couple of great 4-channel hi to low adapters. Check them out here:

http://www.peripheral-aamp.com/periph_prod...convert.htm#add

You should be able to pick one up at your local Car Audio store.

Ok i just noticed that my little Alpine 3522S amp has SP Level input. Does this mean I can use those instead of getting an additional Hi/LO adapter, or is that something different. If it is a Hi/lo converter, is it recomended to run speaker wire all the way to the back rear panel to plug into this amp or is it better to run the RCA cable?


Oh and by the way I said before that this amp was 40w x 2 but it is actually 30w x 2, will this be a problem for the SPS-171A component set?
thanks

That adapter is just adding a hi-to-low adapter between the two sets of harnesses. If it doesn't convert anything, as they claim, then you would be running speaker level directly into your amp, which can cause damage to the input stage of most amplifiers.

To answer your question about the 3522S, the SP Level input is exactly that, a hi-to-low adapter built in the amp. You can connect the speaker wires directly to this input w/o the use of a hi-to-low adapter. I hi quality adapter would actually perform a little better and would be less likely to introduce engine whine into the system, so there is still an advantage to using one of the adapters I recommended, but it should work fine.

thanks Alpman,
I appreciate all of you help. By the way your car looks great, absolutelly outstanding craftsmanship, which a very rare thing (unfortunately).
Anyway, great job-the front doors look sexy!
peace,
Adam