I have a 2007 Honda Civic Coupe, with a 5-speed manual transmission. I've had electrical problems for about 5 months now. I had the car at an electrical shop (twice) who could find nothing wrong.
So I did my own diagnostic and found a parasitic voltage drain with the car off through the MG Clutch fuse. I pulled the fuse and everything was fine. I replaced the Omron relay and the problem was fixed for about 3 months.
Now, intermittently, I have to jump my car with a portable Stanley charger (best money I ever spent) to start the car. I checked all the fuses under the hood and dash and can find no parasitic current draw. Once in a while, the car starts normal. But my 5 month old battery either doesn't always hold its charge, or my alternator isn't always putting out enough current to charge up my battery. And then again, it may be my starter. I'm going to check my battery to make sure it hasn't been ruined by 50-75 jumps. Just yesterday, I had to charge it 3 times on my way to work, and one time after work. It started first thing this morning, but 45 minutes later at a required stop, I had to jump it again. I love the car but it's been such a headache, I'm ready to get rid of it. At least you've given me a few more things to consider. Thanks.