It is official, I am going to Burning Man The relevant info is I'll be bringing the cruiser there. I am thinking I'll slap oin the full roof rack and even possibly the trailer as well. I wanted to rig up a neat outdoor speaker system that will attach to my roof rack, I was thinking of using indoor/outdoor speakers. I'll run them off a standard in car dash. I was thinking of wiring up the regular speakers in all 4 corners for the trip, then wire up a cheapo (like 100W) amp and have a flip switch to turn it off and on for the outdoor speakers? Problem is most in-dash car stereos are 4 ohms only and from what I have read 8 ohms is for home stereo and 4 ohms is most car/marine audio and they are not very interchangable? Problem is it seems like 90% of the indoor/outdoor speakers are 8 ohms so I guess not interchangeable? Here are some good options for outdoor speakers. Problem (especially looking on Ebay) is there is a LOT of junk out there so I don't want to fork down $70 for a piece of junk... I did find some good 4 ohm models though... Ohms on these two range from 4-8 ohms so they are variable: DPI Speakers, about 3 or 4 down: http://www.hometech.com/audio/outdoor.html No review - these c I like the look, size, and price of these. 4-8 Ohms variable, no review. If I rmember correctly AudioVox is a POS brand? http://reviews.cnet.com/Audiovox_Je...eaker/4505-7869_7-31288214.html?tag=pdtl-list And my favorite are these in price and look and the great reviews but they are 8 ohms only: http://www.amazon.com/exec/obidos/tg/detail/-/B00001OXQB/104-8956191-5873566?v=glance These look like good little suckers with decent review and these are 4-6 ohms which is cool: http://www.amazon.com/exec/obidos/t...?v=glance&s=electronics&n=172563&vi=tech-data What do you all think. THe only reason I am so anal aobut this is because I have made this mistake before and had two results. I had a set of these Bose speakers (whch were just AWESOME) that I let go with a car I sold (doh!!) http://cgi.ebay.com/BOSE-151-Speake...793660722QQcategoryZ14995QQrdZ1QQcmdZViewItem I powered these with a car radio deck and they were great. This whole time I thought they were 8 ohms but I am just noticing now that they are 4 ohms and that is probably why they were good little speakers... And a set of Costco indoor outdoor that were just junk on my 2nd to last 40. So thanks for any advice... Also what about mixing 6 ohms with 4 ohms, does that not work either?