In the first picture here there's a black metal bar that runs across the bottom of the trunk. Did you just unscrew that and take it out? I've got the spare tire package as well and didn't want it at all but it came with the car. I thought it would just be easy to take the tire and extra foam inserts out and it would be just like a car without that package but then the dealer pointed out the metal bar. They seemed reluctant to just take it out and I wasn't sure if it could just be removed or if something was attached under the trunk that would get messed up if I removed it. Did you find anything out about this or just take it out and no problems? Your trunk build looks great so far though. Once winter is over i will be doing a similar build but just for audio. I would love to do the air setup but it seems very involved and expensive.
You can unscrew if it you would like to and take it out, but I am not sure what kind of support /brace it provides to the car or if any at that. The spare tire is standard in all cars, if you want to remove the foam you will lose the support underneath for the cover you have on top. I am keeping the foam because i want some of the OEM pieces used as a support to my mdf that I will be laying on top.
But if you need the room for your audio system you plan on using then its easy to remove it all. Good luck with your setup, post some pictures when you start the progress.
The air ride can get involved and could get pricey, but you could always do your own work.
Plus Im sure if you have any questions bagriders or some people on the forums would be happy to give you some advice.
This is my first air ride system for my personal car, but not my first install.
