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

Input:
Question: Which Grace Internet radio wire connects to router?  I get no WiFi and no cell/satellite signal in my house.
Document: I've been into "Internet Radio" since August 2008 when I bought an Aluratek AIRMM01F, which lasted until early January 2014. I knew that Aluratek wasn't building Internet radios any longer and so I searched high and wide for a replacement. I bought the Grace GDI-IRA500 and am thrilled with the results. I have it on the second floor of my house in the south-west corner of the master bedroom, about as far away as you can get from my router. Signal strength is excellent.
Grace Digital GDI-IRA500 Wireless Internet Radio Adapter Featuring Pandora, NPR and SIRIUSI live in an electronic "dead zone" no cable, no cell reception, no tv or radio so everything is via satellite. this device streamed from my satellite internet connection is just the device I needed. I can listen to NPR now, plus things like Pandora. Also important is the ability to stream music from my files on the computer. Everything worked fine after a little tweaking. The setup was simple.
Only used for a few days and on the first day when I had turned it on only for the second time it said i was only receiving 10% wifi signal. I thought it was my new wifi router but our laptop and x-box was receiving full signal. I had remembered an amazon reviewer who said they had to unplug theirs and replug it to get wifi to come in again. So when I proceeded to do this guess what I got? : 92% to 100% of wifi signal.
This is a good Internet Tuner if you are on a budget. I bought it for a friend whom is from Europe and wanted to listen to European Radio stations.Obviously, you connect the Tuner to your WiFi. Just like a Cell Phone or a Computer. Then, you have to set-up tuning via Grace Digital Online (Instructions walk you through it). Once you register the Tuner Online, and set up the stations, you unplug the tuner, and plug it back in.
While the Solo was doing its schizophrenic signal strength dance, the table unit was quite steady, staying in the 70-76% range. Second, I placed the Solo only 6 inches from the router in case it needed a stronger signal. The same rapid fluctuation in signal strength happened.Given that my Grace table top unit could perform well at the opposite end of the house but the Solo would not work from 6 inches away, I returned the unit to Grace under warranty.
Easy to use, connects to my wifi from across the house. The layout and menu are easy to figure out and understand.Hooked it up to a bose wave radio and works great. The remote even has a thumbs up & down button for songs on pandora.
I bought 5 of these, 4 for radios all over the house and one as a gift to a friend. All you need is a wireless router ($50) plugged into your cable modem, Then this Grace Digital internet tuner will turn any radio or stereo system with an auxiliary input in your home into a radio that picks up any radio station in the world for free! It has ten presets and a remote so any radio station you liked while on vacation you can now play at home.
WOW, do I love this radio! I've had Sirius satellite radio for two years, and got sick of their lousy signal for music, which sounds like a cheap cassette. The Grace radio is way, way better. First, it was easy to set up; after physically hooking it up, I had stuff playing in about 20 minutes. The stations display the bitrate, which is helpful, but even the low bitrates, even 32 kbps, sound far better than Sirius satellite.
I purchased this device to receive internet radio (WNYC and WQXR) through my Onkyo sr-608 receiver, instead of installing a roof antenna. It definitely serves that purpose well. It's easy to setup, and once programmed, connects to radio stations in approximately 10-15 seconds via my Verizon Wi-Fi router.
I bought this internet radio for our doctor's office in a Dallas hospital. It worked okay for about a year or so. We used it to listen to one favorite channel on Sirius radio. For the last 3 or so months, though, the music would stop randomly. The problem is the radio, which connects using WIFI, would for some mysterious reason connect to a hospital WIFI channel used for hospital guests, instead of the much stronger and security-enabled WIFI router belonging to our office.
Answer: The Grace Digital GDI-IRDT200 tuner (no speakers) plugs directly into a router via an ethernet cable. The Grace Digital GDI-IRC7500 table radio has built in stereo speakers and uses a USB/Ethernet adapter cable to hook up to your router. Amazon has both.