Soon I'm trading from a 87 Crown Victoria LTD into a 4 door 91 Accord DX (stock everything). When I transfer cars I want to take the 4 speakers and head unit system and have them in addition to the existing speaker set in the Accord. I'm going to keep the stock door speakers, put the 2 6"X 9" rear speakers in the trunk. My question is whether the rear doors (both passenger and driver) can be modified to accommodate 6-1/2" speakers or not.

I'm completely new to the Accord and haven't seen the car up close (it's in another state), so I've only seen the rear doors through pictures and wanted to clarify whether or not it was possible.

- James