Have had good luck with:
Kenwood (head units)
Alpine (head units)
Polk (speakers and subs if you want good tight bass instead of that blobby idiot bass)
JBL speakers
Eclipse amps
I don't care what anyone says about JBL. They sound great. So do Polks. Infinitis blow, even if they are supposed to be the step-up from JBL from the same company.
NEVER Japanese speakers, like Kenwood or whatever. Japanese make good electronics, but Americans and Germans make much better speakers.
ŻOverscoreŻ