best way to wire 6 speakers

I will be starting the install of my new sound system on my side x side. I will have a fiberglass box built which will house six 8" Memphis audio marine speakers. They are not subs, the are a two way speakerwith inline crossover i believe. The wattage rating is 60 RMS and 120 Peak. The amp I was told will work on these is a Sony XM-4S. Bridged into 4 OHM, it is 250 watts x 1. So would i wire this set-up from the bridged positive on the amp to the positive on all speakers,a dn the same on the negative side? If so, is the bridge rating supposed to be no greater than the peak rating of the speaker? Am i understanding this right, or do i have it all wrong? I am new to the audio side of cars and have always been interested to understand it. Thanks in advance for aany info.

This is the spec sheet on the amp:

Max Power (Watts): 500W

Ad Hoc Power into 4 ohms, THD%: 60W x 4, .04

Ad Hoc Power into 2 ohms, THD%: 60W x 4, .1

Bridged into 4 ohms, THD%: 95W x 2 + 250 x 1

Signal to noise ratio (dB): 106dB

Frequency Response (Hz): 5 - 100kHz

Input Level Range (V) Line level input: 0.3 - 6

Current Drain at rated output (A): 25

500W Max Power

4 Channels: 50W x 4 into 4 Ohms

3 Channels: 95W x 2 + 205 x 1 into 4 Ohms

Perfect for pick-up trucks & compact vehicles

80Hz Low pass filter switch

80Hz High pass filter switch

Line & Speaker level inputs

40Hz EQ Boost

CEA-2006 Power Compliant

Width: 8-7/9"

Height: 1-5/7"

Depth: 7-5/7"

Use 4 speakers rather than 6 and put one on each channel of the amp.  You didn't say what each speaker's impedance is, so this assumption is that they are each rated 4 ohm.  The power match works like this:  each channel of the four-channel amplifier puts out 50 watts.  Each speaker is rated for 60 watts.  That's a suitable match.

Stick with the 4 ohm impedance on the amp and don't try putting too many speakers on it.  That's why you should use just 4 speakers with the one amplifier. 

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Ok, thanks. I tried to find out the OHM rating on the speakers, and couldn't. I had a buddy with the exact same set-up, but not sure how it was wired. That thing rocked. Thanks for the info.