Headunit
1. Head unit
This is (obviously) the source for your sounds, CD is the preffered media, closely followed by MP3 (done at a high bit rate). Choose a HU with at least one set of "preamp" outputs. This will enable you to connect your HU to an amplifier. You get what you pay for, there are plenty of reviews floating about on the internet and get yourself to a shop and have a listen. Only YOU can tell what sounds good to YOU.
Ignore the fact that it does 4 x 50 watts, you won't be needing the onboard amp, we're going for real power
Some of the higher end HU's have a high voltage pre out, this can help reduce noise and keep your gains on the amp lower.
