My dad bought me the Blaupunkt Velocity speakers for my SVT focus. We didnt have that much time so the first time we installed only 1 speaker and tweaker and it worked fine, and the next weekend we tried putting it on in the back. We tested it when we were all done and it sounded great. (I dont know what I did so im going to explain everything). While it was on it sounded good and I unplugged it from the glove box to put a better song on, plugged it back in and it went for about 30 seconds and the whole stereo shut off. I didnt know what happened so I came out the next morning and turned the car on, finally i reset it and it worked for like 30 seconds and I turned the car off assuming it now worked again. Later that day I went somewhere and I turned the car on and the radio wouldn't work. I reset the stupid thing and it played music for like .5 seconds and is still doing it a day later no matter how many times I reset it. You can turn the radio on and have it in standby as long as you want but, once you turn on music it shuts off. Just so you know I still have the stock speakers in the front door passenger and the rear driver side.