
for several days now i have been struggling my way through an electrical puzzle that was installing a power inverter into the box. now most of you are wondering why i would bother, you all are very happy in your dc only cars, your world has not come to a screeching halt for want of alternating current on the road. the best answer i can give is that it comes in handy once in a while, plus i had it in the explorer, and i wanted it in the scion.
so the scions all come with ipod ports and aux (non ipod) ports standard. they are in a convenient place on the center console/armrest.

however with the nav system came a proprietary cable which meant that the factory ones didn't connect to (or do) anything. so i pulled them out with the intention of putting in ac outlets.
i got the inverter early last week (ordered specifically for its capacity and the additional usb outlet (for computery gadgets). so once i opened the box, i then proceeded to open the case of the inverter and basically tear it apart. i pulled the outlets themselves out of the front of the inverter and cut the wires attaching them to the unit. then i dremeled the outlets to fit into the ipod ports. then wired them out with 6 feet of 18g as they will be separate from the inverter body.
next i had to get 4g cable to go directly from the battery to the inverter, and then work with that monster to get it to go through the grommet in the firewall on the passenger side of the car (as far from the battery as possible). the positive was difficult but the negative presented a greater challenge, as i wanted to add a switch to the circuit as a means of preventing battery drainage when i am not using the inverter. if i was using a smaller wire it would have been a simple matter but even when cable was stripped it wouldn't fit in any of the slot connecters that the switch used. so with some creative taping and crimping, i improvised a solution-it seems pretty good (but it barely fit side-by-side).


then i connected the remotely wired outlets to the body and stowed it away under the dash, and low and behold, everything worked. amazing. however, in order to turn on the inverter you had to push a soft button on the body of the inverter (which is really inconvenient as it is hidden) so i pulled it out and disconnected it from the power and tried to figure out how to make this work. if i had gotten any other inverter it would have had an on/off switch which would stay on constantly if flipped. but this was a button, soldered to a pcb (printed circuit board)

so i desoldered it and then soldered some strands of copper wire to bridge the connectors on either side of where the button used to be. this did not work, and i discovered that it was not a "constant on" circuit--one push turns on, one push turns off--the circuit is only complete during the push. at this point i thought i had bricked the whole inverter and considered getting a new one and saving myself the trouble. but i put my minor ability to solder to the test by reattaching the button, and it worked, it ain't pretty but it works.

now i realized that to keep it i had to cut the pcb from the body, and wire it remotely to be able to press the button when i need to. this involved 6 lengths of 6ft 18g wire, all independently spliced and connected to random spots on the board. it was hard to find a place to put the button that was convenient to both seats without being conspicuous (like in the middle of the dash) i found a snug little spot at the front of the center console and set to work, if there was a more difficult place to put the button, i couldn't find it. the button had to come through the console enough to be able to be pressed, but could not be constantly pressed down by a tight attachment. this took a few hours and a bunch of duct tape but eventually it worked out. and it is practically invisible.

now i only have some minor glueing and polishing to do on the outlets and switches and it is complete. the sense of accomplishment is high on this one, i had never taken on a project this complicated before. it was a lot of fun. at the end i was even able to use the dremel in the car to do some of the fitment of the on/off switch. it made it so much easier.
now meg can use her electric blanket in the car. and can put a small refrigerator in the back of the box. (only kidding... but now that i mention it it only sounds half crazy...)

next up glow wire in the glove box and in the under dash cubby.