a sound system should be the last thing on your mind. If it were me, id get just about everything i could possible get done to my car mechanically before i even start cosmetic or accessories unless i need to complete a cosmetic or accessory before something mechanical...

just use a cd player in your back seat or soemthing if you need music...VERY GHETTO i know...but you will think its worth it once you have everything done on your car and all you need is a system to put in it instead of a system in it but the car is still a jalopy that cant handle for SH*T and isnt reliable.

 

Definitely go with the suspension first. The kit mentioned from Laurel Mountain is a pretty good deal!