430 Where do you run your battery tender cable?

I've done the same for the past 5 years in mine.

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The proper way is thru the bottom of the door (according to user manual) ..there is actually a intent in the door sill

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I ran it through the bottom of the door for years but a side effect is that my top window trim is now disfigured a bit and the rubber surrounding of the side mirror has cracked open where the window meets the rubber. The cable puts a bit of tension on the door and the trim.

 

I always drop the window a little and drape the cable over it before shutting the door

 

Out the bottom over the sill as per the manual

 

Same as above. over the bottom of the pass door seal.
I differ in opinion from many of other users here who wire the tender to the fuse box behind the driver seat. Mine is wired directly to the battery.
The problem with the fuse box connection is it means if you ever flip the battery cutoff, you're now powering your car with a trickle charger and risk damaging sensitive electronics. That cant happen when connected directly to the battery.

 

Mine has a tender pigtail hidden in the radiator exhaust vent forward of the front wheel. Makes for easy connection.

 

I went to the starter connection, and exited out the bottom of the undertray thru a drain hole. Directly at the bottom of the drivers door....so I see it every time.

 

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Same for me, just on the driver's side.

 

just like this.

 

I run mine through the frunk.
I used the Ctek extension, ran it under the dash over tot he drivers side and used and existing hole on the firewall to reach the frunk.
Works perfect and just have to pop the frunk and plug it in, easy

 

I run mine through the passenger window i just put a microfiber towel on the window and paint so that the wire cant scratch it anymore than it did in the ownership of previous owners.....

Tender connected directly to the battery ofcorse!

 

Driver's door sill and door and windows closed.

 

this raises another issue for another post. i leave my windows cracked to let the humidity control/AC take moisture out of the car. Spoken with a few high high end detail guys and they say they see moisture, rust etc on many of the cars they detail due to humidity getting locked inside the cars from no ventilation. They suggest leaving windows cracked a hair. One story of a 288GTO that was stored inside (of course) but had mold growing under the dash.

 

The windows misalign on their own causing the worn trim if I'm understanding your post correctly. It's a common problem on these cars and would not be caused by running the cable under the door.

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Window and door is perfectly aligned and without issues. Checked by the Ferrari workshop when I discovered it. They also attributed the issue to the cable and it is the thick cable side that goes into the wall. Since then I lower the window a bit.