safe way to connect 14ga to 10ga?

Is there a Safe way to connect or crimp these together for my alpine radio? Or do I need to do something extra I have a 05 impala base model Alpine cda-9815 And a scosche gm2000 class II

Are you going from a #14 TO a #10? If so, I don't recommend it at all. BESIDES the safety issue, read here... It states:

Crutchfield wrote: Wiring Note: While providing high power output, this unit can draw a substantial amount of current. Per Alpine, this receiver's constant power wire must be connected directly to the positive terminal of the battery in your vehicle, and 10-gauge wire must be used to make the connection. This requires a length of 10-gauge power cable, an in-line fuse holder with a 20- to 30-amp fuse and a ring terminal (the ring terminal is used to connect the cable to the battery clamp). Although all the pieces of a basic amplifier wiring kit will not be not needed, if you do not wish to assemble the required items separately, the power wire and in-line fuse holder from a basic 10-gauge kit can be used to connect the constant power wire to your vehicle's battery. For a secure, permanent connection, the 10-gauge cable must be soldered to this receiver's 16-gauge constant power wire.

DO NOT ATTEMPT TO PULL THE NECESSARY POWER FOR THIS DECK THROUGH ANY #14 WIRE! Follow the instructions, and connect directly to the battery, using at least a #10 wire, and solder to the deck's power lead. Larger would be even better, although not necessary.It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Oh well, so much for lowering voltage drops....

neek804 wrote: Is there a Safe way to connect or crimp these together for my alpine radio? Or do I need to do something extra I have a 05 impala base model Alpine cda-9815 And a scosche gm2000 class II

What is it you're trying to do? 

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I'm trying to connect my alpine deck to the battery since I'm going to use the internal battery

neek804 wrote: I'm trying to connect my alpine deck to the battery since I'm going to use the internal battery

You mean internal amplifier, right?  You will need to install a #10 wire all the way to the battery, and fuse it properly.  You will not use the wiring harness for this purpose.

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I know what I have to do I'm asking how do I do it like how do I Connect the 10 gauge to the harness correctly

neek804 wrote: I know what I have to do I'm asking how do I do it like how do I Connect the 10 gauge to the harness correctly

You don't connect it to the harness at all.  You connect the power for the head unit to the head unit directly and bypass the vehicle integration harness.

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I am talking about talking about the power wire on the alpine deck it's self not the cars harness..I thought they both were called "harness" guess not..but whatever how do I connect the 10 ga power and ground wire to the small power and ground wire coming out of the alpine unit it's self..do you understand yet?

If you refer to your owner's manual page 40 it shows the yellow wire connects directly to the battery.  This is the yellow wire coming out of the Alpine radio's wiring harness.  You use a crimp splice connector to attach a longer wire and make it reach to your battery, and you should fuse this wire at the battery with a 20 amp fuse.  What part of this do you not understand?Support the12volt.com