Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: What is the best wiring kit to buy for this??
Document: I had this in my car for 6 months the sound was OK but it wasn't what I was used to. I replaced it with clarion XC1410 I couldn't be happier. It's am OK item but if you're looking for sound definition, power and a great value buy something else.
This amp was definitely worth the price I paid for it. Made my speakers sound crisper and clearer even with the convertible top down. Install was a no-brainier. Just click two connectors together and bingo. Much easier than wiring an external amp as I've done in the past. Great job Alpine! '89 Saab 900 Turbo ConvertibleAlpine SXM45BT HU
I've worked will all types of speakers and amps and due to the convenience of the power pack I highly recommend it. It is worlds easier to install than a conventional speaker amp. No wires to run (just a couple of wiring harnesses to run inline with your existing stereo wires) and quite small so its easy to find a space for it. The sound of this is amazing! I thought my speakers sounded good before but this cleaned up the signal even more.
This amp is the number 1 customer-rated amp on Crutchfield's website. I very much like it's compact size and ease of installation. I simply have it laying in my glove box and it barely gets warm. However the sonics are lackluster, it lacks headroom and the decibel gain is modest at best. My system still quite easily encounters clipping distortion. I will most likely move this amp into my wife's car when I locate a more suitable replacement.
i got this for my 01 silverado whit all alpine speakers it must if u got any aftermarket speakers a+++
You may need to go back to the installer if you didn't do it yourself and pay them money to remove this amp and replace it with a different one.The telling difference for me was, going to the PDX-F4 which is a little more than double the rated output, when adjusting the 3-band EQ on the head unit, every single adjustment to those settings had very noticable changes to the sound. With the KTP-445A, I was straining to hear any difference at all.
You are going to be a lot more satisfied in the longrun, for about the same price as this amp.I ended up replacing this with an Alpine PDX-F4. Yes, it is a major difference in price (about double) and power. The footprint is about twice as much, AND it also requires cabling that just adds to the total cost of ownership.
Yes, it's a "mini-amp" and purists may want 1200 watts in their vehicles (why, I haven't figured out). In my convertible sports car the OEM system was ready for a complete overhaul. I like Alpine's products, and with a new head unit and speakers, this amp was an excellent add-on.
Used with my Alpine deck & speakers. It doesn't really add that much more noticeable volume but the clarity is obvious. Now my Alpine system sounds as what an Alpine should sound like.
This is not very noticeable for most music.
Answer: Your Alpine unit should plug in direct to the amp. I did not need any additional wiring.