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I'm helping my girlfriend out with her car, settin up a new system.. but seeing as how I'm an f-body guy, I don't have the knowledge of the setups on the civic...

she has an 03 civic EX, and is not looking for show quality, etc.. but wants somethign "pretty" so she has picked one of the panasonics with the blue face and the 'smoked chrome' outline...

All I will need is the dash kit and the wiring harness? No antenna adapter?

Also, We are going to change the front and rear speakers.. are they 6.5"s on all 4? Should I be able to just disconnect the old speakers and connect the new ones and it will work that simple? I know my car had an extra amp and the wiring blah blah long story short had to re-wire the whole car

Any tips would be apprecaited... thanks!