I wanted rear satellite speakers, but my desk is up against a wall and I have so room to setup rear speakers behind my chair. So, in order to get the full experience of 3D gamin I decided I'd just attach a spare speaker set onto my chair. This was Version 1. Version 2 is simplified and takes up less space (it also doesn't hit the wall when I swivel the chair around). This one will also be much easier for other people to make, so here's how I did it. 1. Make brackets or develop a mounting system for the subwoofer. TO make things even easier, you could just use a speaker set that doesn't include a subwoofer. For this chair I used the threaded mounts that secure to the arm rest pieces that attach the backrest to the set bottom. I cut the arm rests off of the brackets a long time ago because they were getting in my way. 2. Remove the leather cover (you may even need to cut some stringed anchors) to get it off completely. 3. Cut out a section of the foam in the headrest that's above your shoulder line. These cuts should be quite a bit smaller than the actual speaker you are mounting so that the foam will wedge them in place. My speakers were deeper than the headrest so I removed them from their plastic shell and mounted them to some CD-R stack covers that I shortened. This is the only part of the process that may involve soldering since removing the speakers themselves from their shell may require you to cut and splice the connectors. It's such an easy wiring job and they're color-coded 80% of the time so even someone with no experience with soldering should be able to do it (or have a friend do it). 4. Snake the cords out the back support panel and tuck the excess cabling in the bottom of the back-rest. 5. Position your speakers in the foam and secure to support panel, or glue to the foam. If they're wedged firmly enough in the foam, you may not need to take any extra measure to keep them in place. 6. The necessity to replace any part of the seat cover will depend on the thickness of its fabric. If your backrest cover is already nylon or some other type of fabric then it should be fine, but you'll want to put it back on and test it first. If your seat cover is leather (or a synthetic material with a similar thickness) replace the panels in the seat cover that will be covering the speakers. You can use speaker grills, plastic mesh, or a dense fabric like cotton or linen. Leather will muffle the sound far too much so it will need to be replaced. I didn't have access to a strong enough sewing machine to stitch the cotton panels so I ended up using a stapler, which seems to have worked fine. 7. Attach the subwoofer, volume remote, and power supply (if they're included with the set you're using). 8. Tighten or shorten the cables in whatever manne you want. I put disconnect extensions on the bottom of the chair so that it can be unplugged and moved easily without reaching to the back of my computer or stereo. In the end you have something like this... This allows you to have rear speakers without having to mount them to walls or make awkward stands that you can knock over. This project didn't take very long and is very easy for almost anyone make. Minimal machining is required and the amount of work involved will depend on how clean you want the finished product to look. I only maybe 4 hours in this project and I know I could do better if I were using something other than parts I had readily available. If you've already made one or are making one I'd like to see it.