I have a 1998 Honda Civic EX Coupe and the install was pretty easy. I had to remove a few dash panels but that was not very difficult. My car has a remote factory CD player below the actual radio, I had to unplug the CD player's cable from the radio and this is where the PA-11 connects to the radio. I placed the PA-11 controller unit in the space just to the left of the glove box behind the dash and secured it with zip ties in case I had to move it later. The bonus is that the PA-11 that was shipped to me had a "Hybrid" mode that allows you to use the IPOD normally and also use the cars radio to control the IPOD at the same time. I didn't see this feature listed on their site so maybe its new.The sound quality is better than the stock CD player. I've noticed a boost in the bass freq. but I don't know what is causing this (IPOD or PA-11), if that is good or bad depends on the individual and musical taste.I found the sound level to be an improvement over the stock CD player. This product gets the job done well with little fuss!