This is my first Instructable so be nice. Of note I'm leaving out specific dimensions, tool and hardware sizes as its all specific to my car and what I used. If someone replicated this project then they would need to fit it to their car and the supplies they used. I have included a fair amount of pictures but not every little bit is pictured so I hope it's enough and not to little.
TV 19" ~$100 (Best Buy)
Wood: 3/4" pine, I had scrap wood
PS3 charger stand ~$8 (Amazon)
TV Mount: LCD Monitor desk mount ~$28 (Amazon) make sure it'll fit your TV.
PS3 - this is just what I have
Wood stain: had some laying around
Straps: 2 pull tight type straps, ~$8 (Home Depot)
Hardware: 2 bolts for TV stand with washers and lock nuts. 12 Brass screws with washers.
Velcro: 2 packs, rectangle shaped ~$8 (Home Depot)
Drawer Liner: had some laying around.
Power Inverter: had one already but they run on average ~$25 dollars but can get pricey too.
Miscellaneous: headphones, headphone splitter (I've got 3 kids), and headphone jack extension.
So over all, if you had to buy everything above, save the PS3, it could cost about $200-250. You can probably do cheaper depending on what you have laying around, can reuse, or obtained through reclaiming such as the wood.
Router Table and bits
Dremel with router attachment and bits
Sand paper and block
Drill and drill bits
Step 1: Measure for Size and Cut
This Car TV Mount will sit on the back of the second row, middle seat while my kids sit in the back or on either side of the middle row. I just sat in the third row and measured out the back of the chair to what I thought would give the kids leg room and also keep the board from rubbing against the two neighboring seats of the second row. Then I laid out everything on the board, checking for clearance and best position.
Cut using whatever saw you have - don't forget to be safe.
Step 2: Route Edges
Step 3: TV Mount and Chair Strap Holes
I also used the center line of the board to plunge cut strap holes at the front and back of the board. I used my dremel with plunge router attachment.The two traps will hand tighten the board to the chair. Random objects in a car are a safety hazard in any type of accident so I felt this was the best way I could keep it clean looking and yet trap it to the chair frame. Still not the safest but neither are two 7" monitors straped with velcro the back of two chair headrests.
Step 4: Clean Up Cuts and Sanding
Step 5: Stain, Paint, or Nothing
Step 6: Mounting Items
I used short carriage bolts with washers and lock nuts to secure the TV mount to the wood board. Sorry, didn't have a pic of this but I bet you can figure it out.
Step 7: Place in Car
Thanks for reading, hope you like it. Please let me know what you think. Thanks!