dumbfounded after install

so i decided to run my wires for my rear speakers im gonna install in my reg cab. after i ran the wires, i decided i may as well hook up my boss powered shallow sub too. ran the power wire, grounded it, for the rcas (still have my stock headunit) i ran the high pass setup off the wires i just ran for the rear speakers, and for the remote turn on, i connected it to the positive wire off teh newly ran wires for the rear speaker. i figured this good right? the remote turn only needs to get a signla to turn the unit on and off i thought. its been about 5 years since i've messed with car audio.

anyway..so i hook it all up, turn on the radio, and just asi expected...nothing came from the sub. the powered on light didnt light up. so i grabbed my multitester and tested for power. heres the werid part. in my past audio experience i either got 12.something +/- when i got to something with power, or i got 0.00 when i had a problem. remote turn on to ground i got 2.83 volts, 12v power to the ground, i got 4.3 volts. im still not sure how thats possible. 12v power went from the battery, to my inline fuse, right to the amp. the ground, i used a hole in the little metal shelf on the rear wall. i measure my volts at the battery, and i got 13.4 something or other. with the weird results i got, what could that mean? ive never gotten a volt reading so low with audio, its always been 12.something or 0.

any ideas?

 

where are you measuring your ground point from. if its the same as your amp ground, it sounds like you need a new ground or sand the paint off of the metal your ground is attached to.

 

I would measure voltage to and from the fuse holder as well.

 

i'll try both in the morning. if it was barely grounding, would it be throwing off the amounts i'm getting on my voltmeter?

 

Don't run your remote wire from your speaker wires. Run it from your acc wire

 

i was looking at a wire chart, is it going to be the gray wire on the larger plug?

 

yes, grey on the larger plug

Radio 12v blue/yellow + radio harness
Radio Ground brown - radio harness
Radio Ignition gray + radio harness
Radio Illumination green + radio harness
Factory Amp Turn-on N/A
Power Antenna N/A
LF Speaker +/- pink - purple +,- radio harness or amplifier
Notes: If equipped, the amplifier is on the passenger side rear cabin wall.
RF Speaker +/- lt. green - blue +,- radio harness or amplifier
LR Speaker +/- black - yellow +,- radio harness or amplifier
RR Speaker +/- red - white +,- radio harness or amplifier

 

i hooked it up to the correct wire, should this thing be powering up as soon as i start my truck? i thought it would only turn on if the radio was on.


on a side note, this boss 10in amplified unit blows bigtime....

 

It's hooked up to your ignition wire, so when your key is truned to acc, it will be on. The radio does not need to be on.

 

oh oh oh, gotcha. thanks!