It came time to upgrade the stock audio. Using the stock head unit, I got a Pioneer GM-7300M amp and a Pioneer TS-SW2541D 10" shallow-mount sub. I picked up a power cap from a local flea market. It hits pretty hard, especially for it's size. It adds a great deal of quality to everything I've played so far. Here are some shots from the install...

To keep the install as clean as possible, I lifted the stock floor about 4 inches.

With the floor lifted, the stock deck no longer fit very well, so I used 5/8" particle board to make a new one.

I added a hinged amp platform and painted the frame flat black. With the hinge, I can take out a couple screws, rotate the amp up, and have decent access to my spare.

Here's the floor installed over the frame. I put some lift straps. I tried using a coat of spray-on bedliner from WalMart, but it didn't look that great.

Instead, I decided to upholster the floor hatch area with charcoal felt from Jo-Ann fabric (~$5 per yard). I covered the floor and walls.

The cutouts are to allow some airflow for the bottom of the amp. I also ran a 12V cooling fan off the remote wire. I haven't had any heat-related issues yet.

Amp and power cap installed.

Power cap.

The Reno is too small for a regular sub box, so I decided to make a custom fiberglass enclosure. It was a 2 FULL DAY project (~25 hours), but it went relatively smoothly.

Foil and drop cloth.

As I spread the resin, my friend laid the matting. We had problems with the matting sticking to the rubber gloves, so we wrapped his fingers in foil. It worked really well, and made the work go a lot quicker.

First layer of glass.

Back side, dried and trimmed.

After trying all sorts of glues (super glue, hot glue, gorilla glue), using resin worked the best to set the ring.

First mock-up.

I used a jersey pillow case and put the entire box inside. Pulled it tight and secured it with a zip tie.

First layer of resin over the jersey.

First layer of bondo, before sanding.

Final product.