Mmkay so:
HU install usually consists of
-joining wires of new HU's harness to adapter harness (soldering is best)
-mounting new HU in kit with screws
-removing old HU
-plugging RCAs into new HU
-routing USB/iPod/aux. cables from the back of new HU to glovebox, center console, wherever you want them
-mounting kit w/new HU in car, plug adapter harness into car's connector
-done
I am absolutely certain you can do this yourself. Amp install is more complicated:
-Run new fat power wire from battery through a rubber grommet in the firewall, route to desired location in car
-Fuse power wire near battery
-Run RCAs to desired location, away from power wire
-Run speaker wire from desired location to doors/subwoofer, away from power wire
-Get speaker wire through doors - you can either run the new speaker wire through the rubber boot into the door, or tap into the stock speaker wiring just before the door.
-Mount amp using screws or velcro or straps or magical wizardry
-Ground amp to chassis (or back to battery)
-Connect everything (using distro blocks if multiple amps) tune amp
-Put car back together
The hardest part of installing an amp is usually figuring out how to pull the car apart. Since yours is an 88, things should be significantly easier. If you do choose to try it yourself, we can help you if you have questions. Forums for your car are a very valuable source of information when attempting these things.
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