I do t get what holds the fuse in, its loose and will wiggle out over time, what am I missing?

If you look at the picture, you can see the red power cable. At the very top center of the picture is a gray plastic container (approx 6-8" from the end of the power cable). That is the fuse container. The fuse is inside and can't wiggle out.

How much speaker wire do you get?

Kit includes 17 feet of 8 AWG power wire, 3 foot of 8 AWG ground wire, 30 feet of 16 AWG speaker wire, (1) 16 feet twisted pair RCA, AGU fuse holder and fuse, 20 feet of remote wire, 40 Amp fuse.

Is this enough wire to run for a f150 supercab ?

I am inclined to say yes, but to be sure, you should measure. You need to figure out where you are going to mount your amplifier, and how you plan on routing your power cable. There is 17/18 feet. of Power cable provided, so this is usually sufficient... but I would measure just to be safe.

ASIN	B0012BYOSK
Batteries	A batteries required.
Best Sellers Rank	#100 in Car Amplifier Wiring Kits
Brand	Rockford Fosgate
Customer Reviews	4.7 4.7 out of 5 stars (605)
Date First Available	November 1, 2008
Global Trade Identification Number	00368298575878, 00780687325534
Is Discontinued By Manufacturer	No
Item Weight	5 pounds
Item dimensions L x W x H	11.5 x 2.2 x 13.5 inches
Item model number	RFK4X
Manufacturer	Rockford Fosgate
Material	Brass, Copper
Mounting Type	Freestanding
Number of Channels	4
Other display features	CE
Product Dimensions	11.5 x 2.2 x 13.5 inches
Specification Met	Cea-2015
UPC	368298575878 780687325534
Voltage	12 Volts
Whats in the box	Power cable (4-gauge), Ground cable (4-gauge), RCA patch cord, Speaker wire (16-AWG), Spade connectors (10, 30, 16-AWG), Rubber boots (4 blue, 4 black)

Rockford RFK4X 4 AWG Complete Amplifier Install Kit

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