So I picked up a 92 400E last year and the radio did not work? So A friend wired up a Pioneer head unit, but he only wired the dash speakers, and never finished the job, and moved away. So now I have just the dash speakers that I replaced the other day cuz one blew! So I need to wire up the doors and rears that are still stock and Also the Antenna is not wired! so all I have is the Ipod wired, that does not charge the Ipod so if it dies I got nothing! Some one told me I need to rewire the whole thing AHHHH I hope not? I also heard I might be able to tap into the doors and rears threw the fader in the center console? I have very basic audio experience, is this something I should try or should I leave it to a shop? The stock system is a becker deck with some stock amps in the trunk and I was told it is a confusing mess? I am just trying to run the stock speaker or basic upgrades and get the Antenna working, any input would be a big help!