hey guys im new to this forum but i was just wondering if i can get some input before i start overhauling on this new project. The car is a 1993 500 SEL, with the bose system and becker cassette indash headunit. This is what im buying.

Alpine CDA 9847 headunit
Alpine IPOD adaptor
2 Alpine SWR-1222D subs
MRD-M605 600 RMS mono amp.

i decieded were not going to upgrade the speakers because it is a 11 speaker system and believe it should be decent for this setup...just want some nice kick from the trunk lol. Anyways i hear rumors that if you put in an aftermarket headunit you must rewire cables to all the speakers and factory amps. Is this true?..what exactly do i need to do to install this headunit. Once the headunits in and working..i can install the amp..just gotta get a remote wire from the front or cd changer and everything else is fine. Please let me know if anyone can help with the front end though..i'd really appreciate it.

thanks alot
Jason