Tech tip for wiring.

Member ID
#10915
Messages
185
Likes
146
#1
Not sure if anyone posted this before, but just a little tip. I wanted to hardwire my Uniden R7 Radar Detector and I wanted to use an Add-A-Fuse in the fuse box. I don't like to tap into circuits and have random fuses all over the place...I like my fuses in the fuse box, what can I say. Well trying to fish a wire from one side of the firewall to the other proved daunting. Then I remembered there was the flex tube that the Symposer used that goes into the cabin. I had already deleted the Symposer so I pulled the hose apart inside the cabin at the joint and I tried to fish a coat hanger thru, but the bend was too sharp. So I tied a knot in a piece of string and blew it thru the hose with 80 psi of compressed air. It came out just at the back of and below the battery box. A perfect conduit for wires!!!
 


Last edited:
Member ID
#9034
Messages
207
Likes
254
#2
Good tip! Wish I knew this when I ran the wire for my e30 gauge!

Sent from my SM-N986U1 using Tapatalk
 


Member ID
#15894
Messages
315
Likes
396
#3
Ran mine to the heated seat fuse location under the glove box. Also have a rear view mirror dectector mount looks good imo.
 


flbchbm

1000 Post Club
Member ID
#10692
Messages
1,572
Likes
1,320
#4
Nice! What would your estimate be on how much you could get through there? What gauge wire? (yes, flexibility varies) or a vacuum hose, etc.
 


OP
ywgbandit
Member ID
#10915
Messages
185
Likes
146
Thread Starter #5
Ran mine to the heated seat fuse location under the glove box. Also have a rear view mirror dectector mount looks good imo.
I ran mine to an emissions circuit with the add-a-fuse so it turns off when I turn off the car.
 


OP
ywgbandit
Member ID
#10915
Messages
185
Likes
146
Thread Starter #6
Nice! What would your estimate be on how much you could get through there? What gauge wire? (yes, flexibility varies) or a vacuum hose, etc.
That tube has to be about a 1 inch ID tube. I would think you could get a pretty big wire and a vacuum hose thru there. It would have to be flexible because there is a pretty sharp bend right where it goes thru the firewall. I never tried anything bigger than the wire I needed, so I'm not 100% sure?
 


OP
ywgbandit
Member ID
#10915
Messages
185
Likes
146
Thread Starter #7
Ran mine to the heated seat fuse location under the glove box. Also have a rear view mirror dectector mount looks good imo.
What rear view mount did you use.....I'm looking for one?
 


flbchbm

1000 Post Club
Member ID
#10692
Messages
1,572
Likes
1,320
#8
That tube has to be about a 1 inch ID tube. I would think you could get a pretty big wire and a vacuum hose thru there. It would have to be flexible because there is a pretty sharp bend right where it goes thru the firewall. I never tried anything bigger than the wire I needed, so I'm not 100% sure?
If I could get my hands on some kind of slippery, teflon-like, super-thin collapsable tubing (think expandable hoses), it could be blown through and then wires could slide through easier. Does such a thing exist?

EDIT:
Amazon.com: MGI SpeedWare Woven Mesh Split-Sleeve Wire Loom for High-Temperature Automotive Harness and Home Cable Management - 25 feet (3/4"): Home Audio & Theater
Amazon.com: 20ft 1 inch Cord Protector, Braided Cable Sleeve, Split Wire Loom Tubing, Cord Wrap Organizer for Computer: Home Improvement

I could use the remainder for the trailer wiring in the car and on the trailer.
 


Last edited:
OP
ywgbandit
Member ID
#10915
Messages
185
Likes
146
Thread Starter #9
If I could get my hands on some kind of slippery, teflon-like, super-thin collapsable tubing (think expandable hoses), it could be blown through and then wires could slide through easier. Does such a thing exist?
Once I blew the waxed string I was using thru the plastic hose it was very easy to pull the wire thru with the string. It was harder to pull the hose out of the connection up inside the dash, but a good pull on it separated the hose
 


PhoenixM3

Senior Member
Member ID
#2485
Messages
806
Likes
510
#10
Not sure if anyone posted this before, but just a little tip. I wanted to hardwire my Uniden R7 Radar Detector and I wanted to use an Add-A-Fuse in the fuse box. I don't like to tap into circuits and have random fuses all over the place...I like my fuses in the fuse box, what can I say. Well trying to fish a wire from one side of the firewall to the other proved daunting. Then I remembered there was the flex tube that the Symposer used that goes into the cabin. I had already deleted the Symposer so I pulled the hose apart inside the cabin at the joint and I tried to fish a coat hanger thru, but the bend was too sharp. So I tied a knot in a piece of string and blew it thru the hose with 80 psi of compressed air. It came out just at the back of and below the battery box. A perfect conduit for wires!!!
I had a similar idea for routing my ALP sensor wires. Didn’t know about the 90 bend though. Thanks!
 


flbchbm

1000 Post Club
Member ID
#10692
Messages
1,572
Likes
1,320
#11
Once I blew the waxed string I was using thru the plastic hose it was very easy to pull the wire thru with the string. It was harder to pull the hose out of the connection up inside the dash, but a good pull on it separated the hose
Network cable PULL STRING. I have plenty of that.
 




Top