Viggy75 wrote:i wanna put an amp in my car whats the max watts it could hold?
I think first you have to ask yourself, "What do you want to achieve with your audio system?".
Are you going to use the stock speakers, add a sub, add 2 subs, swap the stock speakers out for aftermarket...so many questions.
HU -> Amp -> speakers. I really wouldn't be too concerned with maximum watts, but instead nice clean watts. You'd be amazed at what just 25w from an amp shounds like. 25w from a HU and 25w from an amp are two totally different things. In fact, I would take 25w(x2) from an amp before I would take 50w(x4) from a HU. Size or higher numbers don't always tell the story.
Case in point, I had Canton 5.25 separates running from a 25w(x2) amp and a single 12 running off 100w(mono). It may not sound like a lot, but inside the car, it was plenty. This was in an '88 Mazda 323 sedanm in the mid 90s, and let me tell you, car audio tech has gotten way better since then.
Also, what minimum watts do your speakers need? What's your budget?
It really sounds like you need to do some more planning (research) before asking more questions.