I now its in the wrong section, but i got a 1994 toyota pickup and the front speakers are 4", there is no room in the doors for speakers so i guess i need 4" (dont wanna do nething fancy), will 4" components like Diamond Audios D3 4" sound loud and crisp???, louder than a 6.5" Rockford T1 coaxil that i have now. I got a ZX100.2 for dem too.
Well if you have a 6.5" coaxials in there then just get some 6.5 components. If the 4" speakers are on the dash I wouldnt even use them. Its a bad place for speakers,Im not using my dash speakers in my S10. One set of good 6.5 components will be all you need.