I have the 03 350z with the bose system. I know, I know, bose sucks. I was 16 and didn't know too much about car audio. I swapped that out with the Sony CDX GT930UI (I think that's the name) and now I'm looking at installing either the Alpine SPS-510 or the Kicker D65.2. I remember hearing some stuff about the system being a 2 ohm and I was wondering if there would be any issues when installing the 4 ohm speakers. I've heard things about multiple amps, the only one I know for sure though is the sub amp. Will I have to do any crazy sort of rewiring, or can I just splice and stick the speakers in there? My car audio knowledge is limited, but chances are I can do most of what needs to be done, if anything. Any tips/suggestions?

 

Are you sure you had the name of those alpines right? The 510 is a 5.25 inch speaker and our mounting hole is a 6.5 inch. They're also coaxial, which I've been told are made with lower quality parts then their component counterparts.

Avoid Kicker speakers, I have those exact kicker speakers in my car right now with a small amp pushing them and they sound horrid. If you want these let me save you the trouble and I'll sell you mine after I rip them out of my car.

Ohms is resistance. You wont have any trouble using 4 ohm speakers, they just wont get as much power as a 2 ohm speaker would (if it even is a 2 ohm system, dont think it is) Bose has been known to do silly things like make everything 3 ohms just to screw with us I guess. Using 2 ohm speakers and wiring them to a one ohm load would be a problem though.

Your b(l)ose amp and sub shouldn't be affected at all or effect your wiring at all, I'm pretty sure its a sort of "standalone" system and all your speaker power comes from the head unit which you already replaced. It doesn't sound like your budgeting for any kind of serious upgrade, so your wiring will be simple and you can just use whats already there. I don't think the stock system had a standalone crossover, so just make sure to cut back far enough that you don't get the in-line one in your new wiring to the speakers.

I didn't do the work on my front stage (unfortunately, I would have been able to do it better than the shop) so a lot of what I said could be misinformed, but its my .02

 

Thanks for all the input! These are the Alpines I was looking at. The issue I have right now is that if I turn the speakers past 30, they start distorting. I already have a PAC and tried messing with that a bit, but that just lowered the quality of the music. I would be more than happy to buy those kickers from you, just let me know price/time! The biggest upgrade is going to be the sub. I'm thinking about getting two of these and putting them in a box that fits under the rear bar. Any recommendations for an amp to power them? Also, assuming i'm running them at normally from 1/2 to 3/4 of their max, would the bass drown out the audio coming from the rest of the speakers?

Edit: I think I may just go with one. Reviews have said these things are loud.